Links

Images

Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle

B60W30/18—Propelling the vehicle

B60W30/20—Reducing vibrations in the driveline

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00

B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs

B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs

B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings

B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00

B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs

B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle

B60K6/48—Parallel type

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00

B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs

B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units

B60K6/54—Transmission for changing ratio

B60K6/547—Transmission for changing ratio the transmission being a stepped gearing

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W10/00—Conjoint control of vehicle sub-units of different type or different function

B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W10/00—Conjoint control of vehicle sub-units of different type or different function

B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches

B60W10/026—Clutches for bridging a fluid gearing, e.g. lock-up

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60L—ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W20/00—Control systems specially adapted for hybrid vehicles

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W2510/00—Input parameters relating to a particular sub-units

B60W2510/08—Electric propulsion units

B60W2510/083—Torque

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W2710/00—Output or target parameters relating to a particular sub-units

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W2710/00—Output or target parameters relating to a particular sub-units

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16H—GEARING

F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion

F16H59/14—Inputs being a function of torque or torque demand

F16H2059/144—Inputs being a function of torque or torque demand characterised by change between positive and negative drive line torque, e.g. torque changes when switching between coasting and acceleration

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T477/00—Interrelated power delivery controls, including engine control

Y10T477/20—Plural engines

Y10T477/23—Electric engine

Y10T477/26—Electric engine with clutch control

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T477/00—Interrelated power delivery controls, including engine control

Y10T477/60—Transmission control

Y10T477/638—Transmission control with clutch control

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T477/00—Interrelated power delivery controls, including engine control

Y10T477/60—Transmission control

Y10T477/638—Transmission control with clutch control

Y10T477/6425—Clutch controlled

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T477/00—Interrelated power delivery controls, including engine control

이러한 하이브리드 차량에서, 상기 모터(20)의 동력만을 자동변속기(30)를 통해 구동륜(80)으로 전달하는 순수 전기자동차 모드인 EV(electric vehicle) 주행모드가 구현되는 바, 예를 들어 차량의 초기 출발시 모터 구동을 이용하여 차량의 주행이 이루어진다. In this hybrid vehicle, the beginning of the pure electric vehicle mode is the EV (electric vehicle) running mode that contains a bar, which is implemented for example vehicle for delivering the drive wheel 80, only the power of the motor 20 via the automatic transmission 30 when starting the running of the vehicle is made by using the motor drive.

또한, 엔진(10)의 동력을 구동축에 전달하기 위하여 상기 엔진(10)과 모터(20) 사이에 배열된 클러치(40)를 연결하게 되면, 엔진(10) 및 모터(20)의 동력을 함께 이용하는 HEV 주행 모드, 즉 중속 또는 고속 주행시 엔진(10)의 동력을 주동력으로 하면서 모터(20)의 동력을 보조동력으로 이용하는 HEV(hybrid electric vehicle) 주행모드가 구현될 수 있다. Also, when connected to a clutch 40 arranged between the engine 10 and the motor 20 to transmit the power of the engine 10 to the drive shaft, with the power of the engine 10 and the motor 20 using a HEV-drive mode, that is, medium-speed or high-speed driving engine 10 and the power (hybrid electric vehicle), HEV utilizing the power as an auxiliary power running mode of the motor 20 in a state of power can be implemented.

또한, 상기 하이브리드 차량의 주행모드에는 감속시에 모터(20)를 발전시켜 차량의 관성에너지를 배터리(50)에 충전하는 회생제동모드를 포함한다. In addition, the running mode of the hybrid vehicle has developed a motor 20 during the deceleration mode including a regenerative braking to charge the inertia energy of the vehicle to the battery 50.

즉, 클러치에 의해 엔진 동력 절환이 가능한 구조이므로, 배터리 충전 제한이 걸리지 않는 경우(클러치가 결합되지 않은 상태)에서 타행 주행시 모터(20)가 발전기가 되어 관성에너지를 회수하며 배터리(50)를 충전하게 된다. That is, since the engine power switching structure capable of by the clutch, when the battery charge limit that does not take the Ta driving motor 20 in the (condition the clutch is not coupled) is the generator recovering the inertia energy, and charge the battery 50 It is.

이러한 진동 현상은 모터와 구동륜 사이의 기어요소들의 백래시(Backlash) 누적에 의하여 크리프(Creep) 발진시 주로 발생하는 바, 이러한 진동 현상은 차세대 친환경 차량이라는 소비자들의 이미지에 반하여 차량의 운전성 전반에 좋지 않은 영향을 미치게 된다. This oscillation phenomenon is good for the overall operation of the vehicle as opposed to the motor and when the creep (Creep) oscillating by the backlash (Backlash) accumulation of gear elements between the drive wheel bar, this oscillation phenomenon, which usually occurs is the image of consumers of the next generation of environmentally friendly vehicles the effect is not crazy.

그러나, 상기 수동 댐핑법의 경우에는 구동계에 별도의 댐퍼가 추가로 장착되어야 하므로, 댐퍼 추가에 따른 패키징(packaging) 문제 및 원가 상승을 초래하는 문제점이 있고, 상기 능동 댐핑법의 경우에는 고성능 센서 및 관측기(observer)의 설계가 필수적으로 요구되며, 요철로 주행과 같이 백래시(backlash) 이외의 진동이 발생하는 특정 상황에서 성능이 저하되는 문제점이 있다. However, in the case of the passive damping method is, so that a separate damper in the driving system must be equipped with an additional packaging (packaging) has the problem of causing the problem and the cost increases, and the active damping method according to a further damper For has a high-performance sensor and and the design of the observer (observer) necessarily required, there is a problem that the performance in certain situations where the vibration other than the backlash (backlash) occurs as in the running irregularity.

또한, 상기 토크 프로파일링법의 경우에는 다양한 형태의 토크 변형이 고려되고 있기 때문에 백래시 발생 부근에서 토크 변화율을 감소시키는 제어를 적용할 수 있지만, 토크 응답성과 진동저감 성능이 타협(trade off)되는 과정에서 완벽한 진동 저감 성능을 확보하는데 어려움이 있다. In the case of the torque profile ringbeop there can be applied the control to reduce the torque change rate in the vicinity of the backlash occurs because it has been considered for the various types of torque variation, the process a torque response and vibration reduction performance is compromised (trade off) it is difficult to obtain a perfect vibration reduction performance.

이에, 능동 댐핑법 및 토크 프로파일링법을 함께 적용하되, 이들의 진동저감 성능을 보완할 수 있고, 같은 유형의 진동저감 방안은 서로 간섭을 일으키므로 서로 간섭이 생기지 않는 추가적인 진동 저감 방안이 요구되고 있다. Thereto, but applicable with the active damping method and the torque profile ringbeop, it is possible to compensate for those of the vibration reduction performance, because the vibration reduction measures of the same type to each other causing the interference, there is a need for additional vibration suppression scheme that interference occur each other .

본 발명은 상기와 같은 점을 감안하여 안출한 것으로서, 하이브리드 차량의 EV 모드 주행중 모터 구동토크의 방향 전환시 자동변속기내의 클러치를 인위적으로 슬립(slip)시켜, 모터와 구동륜 사이에서 기어 요소에 의해 발생하는 백래시에 의한 진동을 용이하게 저감시킬 수 있도록 한 하이브리드 차량의 백래시 진동 저감 방법을 제공하는데 그 목적이 있다. The present invention is one made in view of in view of the points as described above, to artificially slip (slip) of clutch inside the automatic o'clock switch the EV mode, while driving the motor drive torque of the hybrid transmission, caused by gear elements between the motor and the drive wheel to provide reduced backlash vibration of the hybrid vehicle in a way to be able to easily reduce the vibration due to the backlash, which has the purpose.

본 발명에 따르면, 하이브리드 차량의 EV 주행시, 모터 토크의 방향 전환이 이루어지면, 모터와 구동륜 사이에 존재하는 자동변속기의 클러치를 슬립시키는 제어를 통해, 백래시에 의한 진동을 용이하게 저감시킬 수 있다. According to the invention, EV traveling of the hybrid vehicle, when the direction change of the motor torque is achieved, through the control of the slip clutch of the automatic transmission, which is present between the motor and the drive wheel, it is possible to easily reduce the vibration due to backlash.

이때, 상기 엔진 클러치(40)가 접합되어 엔진 및 모터 동력이 함께 사용되는 HEV 주행모드시에는 엔진(10)측에 연결된 토션 댐퍼(torsion damper)에 의해서 토션 진동이 흡수된다. In this case, the engine clutch (40) is joined to the engine and the HEV running mode during which the motor power is used together, the torsional vibration by the torsional damper (torsion damper) attached to the side of the engine 10 is absorbed.

그러나, 상기 엔진 클러치(40)가 해제되어 모터 동력만으로 주행이 이루어지는 EV 주행모드시에는 모터(20)와 구동륜(80) 사이에 배열된 자동변속기 및 종감속기어에는 별다른 댐핑요소가 존재하지 않으므로, 백래시에 의한 진동이 발생되는 문제점이 있다. However, the engine clutch 40 is turned off, so when the EV running mode, comprising a drive with only the motor power, the automatic transmission arranged between the motor 20 and the drive wheel (80) and longitudinal reduction gear is not present no significant damping element, there is a problem that the vibration due to the backlash occurs.

즉, 모터 구동토크의 방향 전환시, 모터(20)와 구동륜(80) 사이에 존재하는 자동변속기(30)내의 기어 요소 및 종감속기어에 백래시가 발생되고, 동시에 백래시에 의하여 진동이 발생되는 문제점이 있다. That is, when the direction conversion of the motor driving torque, the motor 20 and the drive wheel 80, the backlash is generated in the gear elements and longitudinal reduction gear in the automatic transmission 30 is present between, and at the same time a problem in that the vibration is generated by backlash there is.

이에, 본 발명은 EV 주행모드로 차량이 주행할 때, 모터의 구동토크 방향전환이 이루어지면, 자동변속기내에 존재하는 클러치 요소를 인위적으로 슬립시켜, 백래시에 의한 진동을 저감시키는 댐핑 역할을 하도록 한 점에 주안점이 있다. Thus, the present invention is one that a damping role in when the vehicle is traveling in the EV running mode, when the drive torque change direction of the motor made, by artificially slip the clutch elements held in the automatic transmission, reduce the vibration due to backlash there is a point to point.

먼저, 하이브리드 차량의 주행모드를 판단하여(S101), 하이브리드 차량이 모터 구동에 의한 EV주행 상태라면, 모터의 유효 입력토크 방향이 전환되는지를 판정한다(S102). First, if the driving mode to the determined (S101), the hybrid vehicle is in the EV running by the motor drive state of the hybrid vehicle, it is determined that the effective direction of the input torque of the motor is switched (S102).

이때, 상기 모터(20)의 구동토크 방향이 전환되는 의미는 그 일례로서, 운전자가 가속페달을 밟아서 모터의 구동토크가 (+)방향으로 작용하였다가, 가속페달을 떼면 모터의 구동토크가 (-)방향으로 바뀌는 경우를 의미한다. At this time, meaning that the drive torque direction of the motor 20 is switched is as an example, the drive torque of the motor driver is acted to the accelerator pedal stepped on by the drive torque of the motor is (+) direction, and release the accelerator pedal is ( -) it means the case in the direction change.

따라서, 상기 자동변속기(30)내의 클러치 제어 유압이 감소됨과 동시에 클러치 슬립이 이루어지고(S104), 클러치 슬립에 의하여 자동변속기(30)내의 기어요소와 종감속기어 등에서 발생된 백래시에 의한 진동이 저감되어진다. Accordingly, the clutch control oil pressure is the clutch slip done at the same time decreases (S104), the vibration caused by the gear elements and species of backlash generated in the reduction gear reduction in the automatic transmission 30 by a clutch slip in the automatic transmission 30 It is is.

즉, 상기와 같이 자동변속기(30)내의 클러치 요소에 일정값 또는 일정시간 동안 슬립을 유도하여 진동 저감을 위한 댐핑 역할을 하도록 함으로써, 모터 토크 작용방향이 전환되어 발생되는 백래시에 의한 진동이 저감될 수 있다. That is, by having a damping role for vibration reduction by inducing sleep for a certain value or a certain amount of time the clutch elements in the automatic transmission 30 as described above, be vibration due to backlash is caused by switching the motor torque acting direction reduction can.

다시 말해서, 상기 자동변속기용 클러치 슬립시의 클러치 마찰은 백래시 진동에 의한 속도 방향으로 부하를 주어 일종의 댐퍼 역할을 수행하게 되므로, 백래시에 의한 진동이 저감될 수 있다. In other words, the friction clutch of the automatic transmission when the clutch slip so that the load in a given direction by the speed of the backlash vibration damper performing a sort of role, there is a vibration due to backlash can be reduced.

다음으로, 자동변속기(30)내의 클러치에 인가되는 슬립량이 일정값 또는 일정시간에 도달하였는지를 판정하고(S105), 슬립량이 일정값 또는 일정시간에 도달한 경우하면 클러치를 락업(lock up)시켜 슬립없이 모터 동력이 구동륜으로 전달되도록 한다. To] Next, the automatic transmission whether determine and (S105) reaches the slip amount is a predetermined value or a predetermined time is applied to the clutch in 30, a lock-up (lock up) the clutch when the case reaches the slip amount is a predetermined value or a predetermined time slip so that the motor power is transmitted to the wheels without.

한편, 자동변속기내의 클러치 슬립량 즉, Δrpm이 증가하면, 자동변속기내의 클러치를 비롯하여 그 주변 부품의 내구성이 저하될 수 있으므로, 일정값 또는 일 정 시간 동안의 슬립량(내구성이 저하되지 않는 범위이면서 백래시를 해소할 수 있는 수준의 슬립량)을 인가하는 것이 바람직하다. On the other hand, the amount of the slip clutch in the automatic transmission that is, when Δrpm is increased, so the durability of the peripheral parts may be reduced, as well as the clutch in the automatic transmission, while the slip amount (range durability does not decrease over a certain value or a certain time to apply the slip amount) of the class that can solve the backlash is preferred.

도 1은 본 발명에 따른 하이브리드 차량의 백래시 진동 저감 방법을 위한 제어 시퀀스도, 1 is a control sequence for reducing backlash vibration of the hybrid vehicle in the process according to the invention,

Claims (4)

Translated from Korean

삭제 delete

하이브리드 차량의 EV 주행시, 모터 토크의 방향 전환이 이루어지면, 모터와 구동륜 사이에 존재하는 자동변속기내의 클러치 요소를 인위적으로 슬립시키는 클러치 슬립 제어를 통해 백래시에 의한 진동 저감이 이루어질 수 있도록 하고, EV traveling of the hybrid vehicle, when the direction change of the motor torque is achieved, and to be made of the vibration reduction by the backlash over the automatic clutch slip control that artificially slip the clutch in the transmission element existing between the motor and the drive wheel,